With the increasing prevalence of diabetes,the prevention and treatment of diabetes nephropathy have become a worldwide problem.The molecular mechanism of the occurrence and development of diabetes nephropathy is still unclear,but many studies in recent years have shown that gut microbiota plays an important role in the progress on diabetes nephropathy.The research progress on the mechanism of gut microbiota participating in diabetes nephropathy was reviewed in this article.

Maslinic acid is a pentacyclic triterpenoid that is widely found in natural plants such as olives and hawthorns.Maslinic acid has anti-tumor,anti-inflammation,anti-oxidation,antibacterial,cardiovascular protection,neuroprotection,and other pharmacological effects.In this paper,the research progress of pharmacological activities and the mechanism of action of maslinic acid were reviewed,which provides the basis for the development and utilization of maslinic acid in the future.

Objective To evaluate the pharmacodynamics of astragaloside Ⅳ derivatives for chronic heart failure,screen the candidate compounds and preliminarily explore the mechanism of the candidate compound HHQ16 against heart failure.Methods Chronic heart failure was induced by left anterior descending artery ligation in C57BL/6 mice for 4 weeks,and the mice were divided into 4 groups,including sham group,model group,positive control captopril group,and astragaloside Ⅳ derivatives group.After continuous intragastric administration for four weeks,the cardiac function was detected by echocardiography,and the optimal astragaloside Ⅳ derivative HHQ16 was selected for the treatment of heart failure.The preliminary mechanism for HHQ16 was further explored.The size of heart was observed by gross morphology;pathological changes were observed by HE staining;collagen deposition in the myocardium was observed by Masson staining;protein levels of myocardial fibrosis indexes COL1,COL3,and αSMA were detected by immunohistochemical staining,and mRNA levels of myocardial fibrosis indexes COL1,COL3,αSMA,and TGF-β1 were determined by qPCR technique.Results All astragaloside Ⅳ derivatives significantly improved cardiac function with increasing LVEF and LVFS,of which HHQ16 was the optimal compound.Compared with the model group,the heart volume of HHQ16 group was significantly reduced;myocardial hypertrophy was reduced;collagen deposition in myocardial tissues was reduced;and myocardial fibrosis indexes,COL1,COL3,αSMA and TGF-β1 mRNA levels,as well as the protein levels of COL1,COL3 and αSMA were significantly reduced.Conclusion HHQ16 is an optimal astragaloside Ⅳ derivatives for the treatment of chronic heart failure in mice,which could improve cardiac function by improving myocardial remodeling,and inhibit myocardial hypertrophy and myocardial fibrosis.

Objective To generate mice with whole-body overexpression of human METRNL gene.Methods Based on Cre-loxP system,Dppa3-Cre mice were mated with Rosa26-LSL-METRNL knock-in mice(R26-LSL-METRNL+/-)to generate R26-L-METRNL+/-mice.The genotypes of the offsprings were identified,and tissues of the blood,heart,liver,spleen,lung,kidney,brain,white adipose and muscle were collected.The expression of human METRNL gene in mice was investigated by quantitative real-time PCR,western blot and enzyme linked immunosorbent assay.Results Compared with wild type control mice,human METRNL in R26-L-METRNL+/-mice significantly expressed at both mRNA and protein levels in tissues,with abundant METRNL protein in blood.Conclusion The mouse model overexpressing human METRNL gene(R26-L-METRNL+/-mouse)was successfully constructed.

Objective To screen the pharmacodynamic material basic components of Artemisiae Annuae Herba and study its antioxidant activity in vitro by investigating the spectrum-effect relationship between the HPLC fingerprints of 11 batches of Artemisiae Annuae Herba(dried aerial part of Artemisia annua L.).Methods The determination was performed on Aglient C18 column(250 mm×4.6 mm,5 μm)with mobile phase consisted of 0.2%phosphoric acid solution-Methanol(gradient elution)at the flow rate of 1.0 ml/min.The column temperature was indoor temperature,and detection wavelength was 220 nm,with sample size of 10 μl.Using isochlorogenic acid A as reference,HPLC fingerprints of 11 batches of samples were determined.The common peaks of 11 batches of samples were identified and recorded through TCM chromatographic fingerprint similarity evaluation system(2012 edition).Using scavenging rate of DPPH and ABTS free radical as pharmacodynamic indicators of antioxidant effects,SIMCA 14.1 analysis software was used for PLSR to establish the spectra-effect relationship.Results There were 48 common peaks on 11 batches of sample,11 components were identified as scopoletin,scoparone,isochlorogenic acid B,A,C,luteolin,apigenin,chrysosplenetin,artemisinin,artemisetin and artemisinic acid.The scavenging activity of 11 batches of samples to DPPH and ABTS free radicals was detected.The spectrum-effect relationship showed that isochlorogenic acid A,B,C and scoparone were positively associated with its antioxidant capacity,and variable projection value was greater than 1.It was suggested that these components were the material basis of antioxidant effect in Artemisiae Annuae Herba.Conclusion This study investigates the antioxidant capacity of different substances in Artemisiae Annuae Herba in vitro,and proves that isochlorogenic acid A,B,C and scoparone play a major role for the antioxidant capacity.

Objective To establish a mice model of atopic dermatitis with acute itching and investigate the antipruritic effect and its mechanism of Xiaofeng Zhiyang granules(XFZYG).Methods A mice model of atopic dermatitis was prepared by induction method.Mice were sensitized by calcipotriol and ovalbumin(OVA)applying to the right ear daily for 10 days,and then stimulated by OVA injected intradermally into the right cheek to resulting in acute itching.These mice were divided into 5 groups:blank control group,model group,low dose(7.2 g/kg)and high dose(14.4 g/kg)of XFZYG,and positive control group(montelukast 5 mg/kg).Drugs were administered by gavage at 12 h and 30 min before stimulation.The leukotriene levels in the serum of the mice were measured by Elisa and the basophil ratio and activation status in the blood were measured by flow cytometry.Results The mean number of scratches in the model group was 56 between 30 min and 60 min after stimulation,while the mean number of scratches in the low and high dose of XFZYG groups were 42 and 23 respectively,which were significantly lower than those in the model group(P<0.05).The serum leukotriene levels and the proportion of basophils in the low and high dose of XFZYG groups were significantly lower than those in the model group(P<0.05).Conclusion XFZYG had certain therapeutic effect on acute itching of atopic dermatitis in mice,and the mechanism of its action was related to the reduction of leukotriene level and basophil ratio in serum of mice with atopic dermatitis.

Objective To explore the correlation between the immune related adverse(irAEs)reactions in patients treated with pembrolizumab and traditional Chinese Medicine(TCM)constitution.Methods A total of 110 patients diagnosed with non-small cell lung cancer for the first time were selected.When receiving pembrolizumab immunotherapy for the first time,a general information questionnaire,a TCM constitution classification and judgment scale,an immune related adverse reaction follow-up record book,and a patient's self-perception diary were used to investigate and analyze the TCM syndrome and adverse reactions of the patients.Results Among non-small cell lung cancer patients,there were more than four TCM constitutions,with 48 cases(43.64%)having a calm constitution,20 cases(18.18%)having a biased constitution,30 cases(27.27%)having a yang deficiency constitution,and 12 cases(10.91%)having a yin deficiency constitution.Qi deficiency and Yang deficiency were more prone to fatigue,while Yang deficiency was more prone to rash;Qi deficiency and Yin deficiency were more prone to itching;Yang deficiency was more prone to diarrhea;Non-small cell lung cancer patients with mild constitution were less prone to immune related adverse reactions.Conclusion TCM constitution is related to irAEs,which could predict the occurrence of immune related adverse reactions from the perspective of TCM constitution and intervene in adverse reactions early.

Objective To investigate the risk factors of infection of Pseudomonas aeruginosa combined with Elizabethkingia anophelis in patients with cerebral hemorrhage and the antimicrobial treatment plan.Methods Clinical pharmacists participated in the treatment of pulmonary infection caused by Pseudomonas aeruginosa combined with Elizabethkingia anophelis in a patient with cerebral hemorrhage.The risk factors of Elizabethkingia anophelis infection and antimicrobial treatment plan were analyzed by referring to literature and combining the patient's condition,medical history,drug use history and related examination results.Results Based on the infection site,the characteristics of mixed bacterial infection,and the metabolic/pharmacodynamic characteristics of antimicrobial agents,clinical pharmacists made drug recommendations for clinicians in the adjustment of anti-infection protocols,and patients'systemic infections were effectively controlled.Conclusion Elizabethkingia anophelis is a conditional pathogen with low virulence and is not easy to infect healthy people.When the patient's immunity is low,it is easy to transform into pathogenic bacteria,which should be paid attention to.

Tacrolimus is a commonly used medication for the treatment of nephrotic syndrome.Due to its narrow therapeutic window and significant pharmacokinetic differences among individuals,therapeutic drug monitoring is required during its clinical use.In the process of therapeutic drug monitoring,machine learning-based personalized dosing prediction models for tacrolimus can excavate medication patterns from a large amount of clinical data,assist in clinical decision-making,and achieve individualized precise medication.Machine learning models,the application progress of machine learning in personalized administration of tacrolimus for patients with nephrotic syndrome,modeling points of machine learning prediction models,and the limitations of current prediction models were reviewed in this paper,which could provide references for future research in this field.

Esophageal cancer is a malignant tumor with high incidence and mortality rate in the world and its pathogenic factors are complex and diverse.There are no obvious symptoms in the early stage,and most patients are in the middle to late stage at the initial diagnosis.The prognosis of esophageal cancer is poor.The treatment mode of conventional surgical resection combined with chemoradiotherapy can no longer meet the current treatment needs of disease,and new treatment strategies are urgently needed.Molecular targeted therapy and immunotherapy are new treatment methods that have emerged in recent years,which have broken the therapeutic bottleneck and have been proven to play important roles in the treatment of esophageal cancer.The current research progress of the main targets and their related targeted drugs in molecular targeted therapy and immunotherapy for esophageal cancer were reviewed in this article,which provided reference for the application of precision medicine in the field of esophageal cancer.